类似于android短信校验码的demo

该demo主要实现了类似于银行支付短信校验的功能，30s后可重新进行校验，具体功能没实现，只是用Handler和Timer，TimerTask写了个简单的demo,具体如下：

1、Layout布局

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent" >


    <Button
        android:id="@+id/icode"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_centerHorizontal="true"
        android:layout_centerVertical="true"
        android:text="@string/obtain_vcode"
        tools:context=".MainActivity" />


</RelativeLayout>

2、MainActivity代码

package com.jon.mmsverfiy;


import java.util.Timer;
import java.util.TimerTask;


import android.app.Activity;
import android.os.Bundle;
import android.os.Handler;
import android.os.Message;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;


public class MainActivity extends Activity implements OnClickListener {


private Button getVerfiyCode = null;
private Timer timer = null;


private Handler handler = new Handler() {
public void handleMessage(Message msg) {
if (msg.what > 0) {
// getVerfiyCode.setEnabled(false);
getVerfiyCode.setText(msg.what + "s后可以重新进行校验");


} else {
getVerfiyCode.setEnabled(true);
getVerfiyCode.setText(R.string.obtain_vcode);
timer.cancel();


}


};


};


@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
findViews();
setListens();
}


private void setListens() {
getVerfiyCode.setOnClickListener(this);


}


private void findViews() {
getVerfiyCode = (Button) findViewById(R.id.icode);


}


@Override
public void onClick(View v) {
switch (v.getId()) {
case R.id.icode:
getVerfiyCode.setEnabled(false);
timer = new Timer();
timer.schedule(new TimerTask() {
int timeCount = 30;


@Override
public void run() {
handler.sendEmptyMessage(timeCount);
timeCount--;


}
}, 200, 1000);


break;


default:
break;
}


}


}